Electrical apparatus



J. B. WANTZ. ELECTRICAL APPARATUS. APPLIQATION H'LEB APR- 29, 1915.

I Patenjggd May 18,1920. I 2 SHEETSSHEET 1 Juuus B. WIINTZ I (Tm w J. B. WANTZ. ELECTRICAL APPARATUS.

APPLICATION FILED APR. 29, 1915.

' Patented May 18,1920.

2 SHEETS-SHEET 2.

enrich,

and low tension current to .ENQES, essien'on, BY iunsn'n ASSIGNMENTS, T0

VICTOR ELECTRIC CORPORATION, 016 CHESAGQMEELINOIS, A CORPORATION OF NEW Yo I.' nnncrnicnn incense. Specification of Letters Patent, w -p g m 18, 192p Application filed April 29, 1915.

To all whom it may concern:

Be it known that l, JULIUS B. WANTZ, a

citizen of the United States, residing- J- tate Chicago, in the county of Cook and of Illinois, have invented a new and useiul Improvement in Electrical Apparatus, of

v which the following is a specification.

My invention relates to novel and inn proved. features of electrical apparatns vised more particularly for use "work, as hereinafter set forth( Certain of my objects are to provide in: the accurate regulation of the current sno- P plied to the X-ray tube; to provide to adequate control of the electrical device controlling the amount of current supplied for X-ray purposes, from any one of a pin-- rality of locations, as for example, a plurality of rooms, in each of which X-ray tube or tubes is, or are, located andv a single transforming device employed; to provide in a system of the character stated, namely, one involvin a single tre s forming device for supplying current either one or theother of two tubes lOCt in two difierent rooms, and wherein wires are disposed preferably the u, part of the rooms, and where the 13s tubes employed are of a character invo iug heating elements, as in the case of he so-called Goolidge tubes, switch me nisin adapted to direct both the high tension either the tubes; and other objects as will be manifest from the following description.

Referring tothe accompanying drawings,--- r Figure 1 isa view in the nature of a diagram of a system embodying my invention,

where an 'atus be employed, this arrangement crial No. 24,791.

preferred form or" device employed for reg ulating the supplying oi heating current to the tubes. I

in the particular arrangement shownthe apparatus is designed for use where X-ray' tubes are located in different rooms and it is desired that a single transformer shown involving in part what is termed overhead wiring, or in other words, the location of certain of the current conduct a ,w w 1:

gg near the ceil ng or the rooms. ie apparatus as shonn 1s 1ntended for use with iii-ray tubes of the so-oalled Coolidge type above referred to, these tubes being represented at 18 and equipped with bindlug posts 17 and 20, the binding post 17 con-- necting with one of the terminals of the heating-element-equipped electrode of the tube and the othen terminal of this electrode being connected with the binding site wells of two adjacent rooms I. ted. at 82, anda partition sepiese rooms, at 88. This installavos wires 8% and S5 one room, ed at one end to an anchorage SS ,9" an insulator 87 and near their op- "e ends connected with terminals 88 tas- .ed to a switch. device, the frame of which is represented at 95), with a meter 89 sup- 3 ioiio. the wall and electrically interpose the wire 84:, the wire being con nected with the ends oil a block 90 of insulating inateriai, whereby the wire 84; may be maintained in taut condition. A third, overhead, wire 91 is'connected at one end with an insulated anchorage 92 and at its opposite end with a terminal 93 of the this view illustrating the two rooms with switch device, this wire having interposed 95 an X-ray tube of the Coolidge type in each, therein a meter 9%, supported from the wall, together with 8311 overhead system of wiring, with a block 95 of insulating material, like and adapted to be supplied by a single the block, 90, to which the wire 91 is setransforming device, with a switch for concured, as and for the purpose explained in trolling the supply of high tension and low connection with the wire 84-. All three of tension current toeither of said tubes, and the wires 84, 85 and 91 pass through an inwith a chokecoil controlling the current sulator 95, co nposed of a sheet oil-glass set supplied by the transformer, with means for in the partition 83. The overhead wiring operating the choice-coil from either of the iii-the room on the opposite side of the parrooms. Fig. .2 is a View in vertical longitition 83 is the same as the wiring just detudinalsectional elevation of the shittable scribed, the three wires corresponding to the member of the'switch device shown in Fig. wires 84, 85 and 91, these Wires, with the 1 for s itching the current trorc one tube to apparatus connected therewith, as described the'oflf and gig. 3, a view in front eleoi, the wires in the room at the iettliand u yrly broken awe-v. showing the side the partition. fii being given the 11'0- naaoess from one to the other of contacts 71 and 72 I one terminal 36 of the coil 36, and the wire 27* connects through the post 61 with the contact 71, the contact finger 64 being electrically connected, at its pivot, with the other terminal 36 of the coil 36. From the foregoing it will be understood that when the core 40 is in lowermost position, the contact finger 64 will be depressed out of engagement with the contact 71 and thus no current will traverse the coil 36, but upon raising the core 40, the finger 64: will immediately rise, engaging the contact 71 and closing[ the circuit through the coil 36.

n the particular arrangement illustrated cables 126 and 127, extending over pulleys. 128, 129, 130 and 131 in the two rooms, connect in a manner, not shown, with the upper end of the bar 11, the opposite en of these cables in the two rooms being prOVided with counterweights 132 and 133, The counterweights are of such weight that together they will substantially balance the weight of the movable portions of the.

choke-coil device with which the cables 126 and 127 are connected, so that the operator, operating in either room, may by raising or lowering the counterweight in the room, adjust the core 40 relative to the coil 36, the core thereupon remaining in the adjusted position, it being understood that when either of the counterweights 182 or 133 is raised or lowered the other of these counterweights will rise or descend as the case may be in unison therewith.

The shaft 108 is provided with any suitable mechanism for rocking it from a position in which the arms 114:, 115 and 116 engage with the contacts at one end of the frame 99, to a position in which these arms engage with the contacts at the other end of the frame, or to an intermediate position,

the mechanism shown for this purpose comprising a cross-arm 13a, to the opposite ends of which the ends of a cord 135 are connected, the loop of this cord extending into such position that it will be convenient of operation by the operator.-

that by the arrangement shown in the drawings boththe high and low tension current supplied to the switch device, may be direted to either of the tubes 18. as desired, by shifting the rotatable member 107 as hereinbefore' explained, thus supplying either of the tubes 18, at the will of the operator, with X-ray-producing current, and current for exciting the heating element of located at different will be understood from the foregoing the tube, without involving more than one transforming apparatus and current regulating device therefor, the latter being operable from either of the rooms.

The feature of so locating the conductors for the low-tension and the. high-tension current that they are remotely disposed relative to the tube, as for example in over head position, is of advantage as thereby danger to the operator and patient is re-" duced to the minimum, as accidental contact with the high-tension conductors is avoided, and furthermore the apparatus is more economical of construction.

l' hile l have illustrated anddescribed a particular embodiment of my invention, I do not wish to be understood as intending to limit it thereto, as the same may be variously modified and altered without departing from the spirit of my invention, it being my intention to claim. my inventionas fully and completely as the prior state of the art will permit.

What ll claim as new and desire to secure by Letters Patent is:

1. In -X-ray apparatus for X-ray tubes having electrical heating elements, the combination of a plurality of disconnected sets of wires, certain of which are adapted for connection with the heating elements of X-ray tubes of said type, a source of low tension current, means for connecting said source of low tension current with any one of said sets of wires, single means operat ing when actuated to regulate the flow of low tension current to said wires, and a plurality points and adjacent said tubes, respectively, for actuating said last referred to means to control the low tension current.

2. In a system for energizing X-ray tubes having heatingelemen'ts, a plurality of said tubes, a source of low potential current, a source of overhead high potential current,

ice

of independently operative means two sets of wires of three each, two of the wires of each set adapted for carrying the current from said first-named currentsource to said heating elements and one of said two wires of each set and the third wire of each set thereof adapted for carrying the current from said source of high potential current to the anodes and cathodes of the tubes, means for switching the high and low potential current from said sources to either of said sets of wires, means for varying the low potential current to either set of wires, interposed between said switching means and said source of low potential current.

3. In a system for energizing X-ray tubes having heating elements, a plurality of said tubes, a source source of high of overhead wires and single) 0f each Se; admpbegz f0 Qzzrrying- 70V? tension surrenfi to said wires and a plumini; from id first-named cmw of indepezzdantiy operatim means 10- me; to said heating eiemems and 0116 catei at different points and adjacent said 1N wiz'es of each seL- and the third tubes, respectively, for actuating said last;

Z 3:11:11 set thereof ampted. 01" carryreferred; :0 l-ineans w contra the 10w tension 3 m2 rent frsm Saki sourcs of high current.

' J" 4 r 'wx w mass, means :01- swlbchmg the high av poiential current from said sourc ss of said sefis Oi wires, means operlezil Mimi-"ash 1'50 regulat'a "@110 flow of 

